Disable key event

Is there a way to disable keys from being pressed?

With current technology, you can't prevent the user from pressing keys, but you can ignore any key presses that they make. Here's a handler that will make your movie ignore everything except vowels:
on startMovie()
the keyDownScript = \
"if "&QUOTE&"aeiou"&QUOTE&" contains the key then"&RETURN&\
" -- Let the key press be treated"&RETURN&\
" else"&RETURN&\
" stopEvent"&RETURN&\
" end if"
end
If the #keydown event is stopped then no sprite or member will receive an indication that a character has been typed.
You might like to look at the keydown event handler and build your own custom solution.

Similar Messages

I need to disable key events - J2ME

Is there anyway, in J2ME, to disable key events while processing a current key? I want to avoid queing up of key events and then re-enable key events when I am done handling the current key.
public void keyPressed(int keyCode) {
switch (keyCode) {
case -50:
// I want to disable key events here
// process this key
// re-enable key events
break;
default:
break;

I had tried using a boolean to skip avoid the key as you suggested. That does not work. It seems as if the keys are only being processed in a serial manner. By that I mean the keyPressed method is not receiving the second and third keys while I am processing the first. So when I am done processing the first key I set isOkayToProcess=true and then the second key comes in.

How to disable the F4 Key Event?

Hi Guys,
I have written my own FocusManager which allows me to traverse through disabled components. If a user presses the F4 key while the focus is in a disabled JComboBox, the popup becomes activated. Is there any way deactivate the F4 keystroke?
I have tried:
event.consume();
combobox.setPopupVisible(false);
combobox.hidePopup();
I also read that F4 is a low-level event maintained by Windows. Is this true? Is there no alternative?
-Sri :)

To anyone who may be interested:
I have tried all available solutions:
1. hidePopup()
2. setPopupVisible(false)
3. unregistering the F4 key event
4. catching the F4 key event and snubbing it
I have had no luck with the above solutions. It leads me to believe that F4 key is registered under the windows environment and it is a low-level event.
-Sri :)

Macbook misses some key events for a few seconds

I have noticed that for last two months or so something strange happens to my Retina MBP. Once in a couple of days it stops responding to some key events. It is like it handles only one keypress out of 4-5. Nothing seems to be wrong with the keyboard and it is not about a particular key or keys. And about 10-15 seconds later everything goes back to normal. I do not see any suspicious messages in the logs, the computer is connected to the power supply...It happens just by itself in the middle of the day, when I am typing.
Almost looks like some interrupts get lost by the system while it is busy with something else. But I have checked the load level and running processes - nothing interesting there....And whatever it is - it happens during a very short period of time.

Hi,
No, I have not returned my MBP yet. In fact, I would rather avoid doing this unless I am convinced if it is a hardware issue. And I do believe it is not. Just recently I have spent some time investigating it and I have found very stroing correlation between the moments when this happens and these messages in the kernel log:
Jan 13 10:49:54 mbp-wifi kernel[0]: Sandbox: sandboxd(96471) deny mach-lookup com.apple.coresymbolicationd
Jan 13 10:54:31 mbp-wifi kernel[0]: Sandbox: sandboxd(96499) deny mach-lookup com.apple.coresymbolicationd
Jan 13 10:54:31 mbp-wifi.home sandboxd[96499] ([96497]): mdworker(96497) deny mach-lookup com.apple.ls.boxd
Jan 13 10:54:31 mbp-wifi.home sandboxd[96499] ([96498]): mdworker(96498) deny mach-lookup com.apple.ls.boxd
Jan 13 10:56:32 mbp-wifi.home sandboxd[96504] ([96503]): mdworker(96503) deny mach-lookup com.apple.ls.boxd
Jan 13 10:56:32 mbp-wifi.home sandboxd[96504] ([96502]): mdworker(96502) deny mach-lookup com.apple.ls.boxd
And I have also noticed that my Spotlight database gets reconstructed too often, which means it gets corrupted.
From all this I conclude that it is most likely the software issue and it seems to be linked to spotlight. I saw people reporting similar things. So now I am researching on how to fix it without disabling the spotlight.
In general, I believe that the quality of Apple software is going down, it is not like 4-5 years ago And Apple does seem to care less and less about it.
If in your case it happens all the time, not just once in a while, and you see that a particular key has problems - it is possible that we are talking about the different issues and yours might be really about the keyboard.

Adobe reader control kills key events

I am using visual studio express 2013 on Win7 professional (x64) to write a private c# form application.
Adobe reader is installed and added to my project.
The control shows a pdf, wounderful.
But at the moment, my form has the adobe reader control, no key events where triggered.
Without the control: all works fine.
I record a video to show my problem: https://www.youtube.com/watch?v=V0Vo2p2jz9M
Is there a solution or workaround to give the key events to my form?
Are more information needed?
Thanks a lot.

Check if you have full access to
HKEY_CLASSES_ROOT\AcroExch.FDFDoc and sub keys,
Disable any antivirus or backup applications while installing Reader.

Sleutel Bind, fancy key events handler for standalone window managers

I began using Openbox in my laptop a while ago, and I was amazed by the speed, customization and simplicity it provides. After I started customizing my desktop I noticed that some of the special keys (TouchpadToggle, Volume, PrintScreen, etc) didn't worked at all. There are some applications for the Volume keys to work, but not for keys like touchpad-toggle and print-screen. Of course, there's a workaround for each case using simple scripts, but I wanted something a little more fancy, so I made:
Sleutel Bind
It's made in C and provides key events handling for:
XF86TouchpadToggle
Print (prtsc key)
It makes use of libnotify to display states ( touchpad enabled/disabled, screenshot taken, etc) and imlib2 (a very popular library, probably already installed in your system) to grab the screenshots. Almost all other keys are covered already by another application, but if needed, more key events will be added in the future.
Feel free to post your thoughts about Sleutel Bind, it's my first contribution to the community.
How to use
Once installed just run the command as a normal user.
If using openbox, place the following command in the "~/.config/openbox/autostart" file:
sleutelb &
Links
AUR
github
Last edited by DanielRS (2013-03-01 21:58:35)

mgmillani wrote:
I believe it must have been a bug and it was fixed, since print screen now works as expected. I'm using xmonad version 0.11-9, with ghc version 7.8.3.
davama wrote:
Note: for my print key to be recognized by xev i had to hold the ctrl key. that way it was not registered by xmonad. Also for xev command i use
xev | grep -A2 --line-buffered '^KeyRelease' | sed -n '/keycode /s/^.*keycode $[0-9]*$.* (.*, $.*$).*$/\1 \2/p'
Nice, that seems to be useful. Thanks!
@LQYMGT
Do you still have issues with the latest version? Otherwise I will mark this thread as solved.
well, still do not work... But I do not want to try it any more...So you can mark.

Can DISABLE preProcess Event Handler add to the Orchestration parameters?

I have a DISABLE pre-process event handler defined on the User object. I need to set the current date on a USR UDF attribute whenever the user is disabled or enabled or created. The CREATE handler works and the date value shows up on the user profile. However, when I try to set this attribute on the pre-process DISABLE or ENABLE event handlers, the new date does not show up. Here is the code I am using in my DISABLE/ENABLE event handler:
Date currentTime = new Date(System.currentTimeMillis());
orchestration.addParameter(USER_STATUS_DATETIME_ATTR_NAME, currentTime);
Where the orchestration object is from the execute() parameter list.
Any ideas as to why this is not working? Is adding to the orchestration not allowed for DISABLE or ENABLE event handlers? I know my handler is getting calls as I am logging the orchestration.getOperation() value.
Thanks for any suggestions.
-Dave
Edited by: user552098 on Nov 12, 2012 1:56 PM

When you update the field, make sure you are using the field label name, and not the UDF value.
-Kevin

How can I disable the "Events" how can I disable "Faces"

buona sera
how can I disable the "Events"
how can I disable "Faces"
grazie

You can not
Events are one of many views or your photos in your library - as are faces
YOu can simply ignore both but you can disable them
LN

Detect key events on anything

If I have a JFrame with many components on it, how do I detect if a key is pressed, without having to add a listener to every component? For example, how can I check for the escape key being pressed, but not having to have componentN.addKeyListener(this); for everything?
Thanks
US101

The correct way to collect the key events is the following:
from java 1.2 to java 1.3 use the FocusManager. This class can be found in the javax.swing package. You would then need to extend the DefaultFocusManager and override specific behavior.
for java 1.4 use the KeyBoardFocusManager. This class can be found in the java.awt package.
Please see the following for a better explanation:
http://java.sun.com/j2se/1.4/docs/api/java/awt/doc-files/FocusSpec.html
Thanks for your time,
Nate

Catching key events in application

I have a JFrame with a JDesktop containing lots of JInternalFrame with various of components such as JTextFields etc.
Now, i want to have a "main" listener that will catch key events no matter which component that has focus. For example pressing CTRL+A should produce something in the application no matter which component that has focus.
How do I implement this in an easy way?

It doesnt seem to work to add a KeyListener to the JFrame...
this.addKeyListener(new KeyAdapter(){
               public void keyTyped(KeyEvent e){
                    System.out.println("KeyTyped()");
               public void keyPressed(KeyEvent e){
                    System.out.println("KeyTyped()");
          });Adding that to the JFrame gives nothing to System.out when a JTextArea inside an JInternalFrame has focus.

Associating key events to a TextBox

Hello All!
Can anybody tell me how to associate key events with a TextBox? Something like when a certain key is pressed and released, a certain combinations of characters is inserted e.g. =-)
I am trying to develop a simple application that allows users to type text with non-English characters, e.g. Russian and for that I have created a canvas and I am using key events i.e. KeyPressed and KeyReleased methods. Using a canvas is a bit insufficient because users cannot move the cursor freely through the text.
I have read on te web that I can create a CustomeItem and override the KeyPressed methods but I could not do it; I could not find any simlar code example.
Can anybody help me by providing me with a simple example or suggesting me an alternative way?
Many thanks in advance

{color:#008080}*Hello again!*
I managed to create a CustomItem that overrides KeyPressed method, but now I am having difficulties making my textBox reacts to my keyPressed method.
The early version of this CustomeItem overrides the KeyPressed method by assigning each key to a certain collection of chars. When a key is pressed, a string of these chars is drawn on the Canvas, which works fine. Now because I want to be able to edit the text, e.g. delete a certain char in the middle of the string, I want to use a TextBox or a TextField. The current problem is that my TextBox does not react to my key presses the way I want (I used setString() method); it reacts to the original key presses which print the original chars (from A through to Z and 1 through to 9).
Is it possible to set the contents of a TextBox or TextField depending on my key presses? Could you suggest me an alternative way?
Many thanks in advance!!{color}

Object Movement with Key Events

Hi everybody!
Im trying to move an object over the screen with keyboard buttons. The problem I have come across with is that I would like to use the right button to move right, up button to move forward, etc. but I cant push, for example, right and up buttons at the same time to make a diagonal movement. How can I solve this?
Thank you and regards.

I added key events to a sequence and than check them in the program.
Something like this:
class Car extends CustomNode {
    var keys:KeyCode[];
    public override function create(): Node {
        ImageView {
            transforms: [ Translate{ x: bind x, y: bind y }, Rotate{ angle: bind direction}]
            x: -w
            y: -h
            image: Image { url: "{__DIR__}car.png"}
            onKeyPressed: function( e: KeyEvent ) {
                insert e.code into keys;
                if(e.code == KeyCode.VK_UP){
                    ds = 2.0;
                }else if(e.code == KeyCode.VK_DOWN){
                    ds = -2.0;
                }else if(e.code == KeyCode.VK_LEFT){
                    da = -1.0;
                }else if(e.code == KeyCode.VK_RIGHT){
                    da = 1.0;
            onKeyReleased: function( e: KeyEvent ) {
                delete e.code from keys;
    public function move(){
          // check keys
}

KEY events in MIDlets

Hello all,
I am basically new to J2ME MIDP development and also new to this
forum. So apologies if this has already been covered or turns out to
be a stupid question :) Here goes:
I am trying to develop a MIDlet where I have a Form to accept certain
values from the user. This is fairly straightforward and is easy to
create with the high level Form a and TextField objects.
Now, I wish to add a functionality to my MIDlet, in which, the user
can press a specific key.. say the "Select" key or the "Call" key.. at
any time during the form to start another thread of operation which
performs something totally different... say for example, the user is
entering values into the form and in between somewhere he presses this
specific key and the phone start playing music. I hope you get my
point.
Basically I want to listen for key pressed or key held events on a
Form object. Now I understand that Key events can be found only on the
low-level Canvas based UIs. So is it possible to do it with Screen class
elements..?
Thanks,
Nik

You can try to use a CustomItem. What events will be delivered to the custom item depends on the implementation, though. Also these events will be only delivered when the CustomItem is focused.
Have a look at the J2ME Polish GUI for using CustomItems for MIDP/1.0 devices as well.
http://www.j2mepolish.org
Best regards,
Robert

Disablying keyboard events in a JFrame.

Hello,
How is it possible to disable keyboard events for a specific JFrame and then (after a while) enable events again ?
thank you,
Rami

Look at this program, events are send but you can't see the data in the fields.
import java.awt.*;
import java.awt.event.*;
public class Nok extends Frame
public Nok()
     super();
     setBounds(6,6,400,300);
     addWindowListener(new WindowAdapter()
    {     public void windowClosing(WindowEvent ev)
               dispose();
               System.exit(0);
     setLayout(new GridLayout(4,0));
     add(new TextField("this is a text field"));
     add(new TextArea("this is a text area"));
     add(new Button("this is a button"));
     setVisible(true);
     Toolkit.getDefaultToolkit().addAWTEventListener(new AWTEventListener()
     {     public void eventDispatched(AWTEvent e)
               System.out.println(""+e);
               ((KeyEvent)e).consume();
     }   ,AWTEvent.KEY_EVENT_MASK);
public static void main (String[] args)
     new Nok();
Noah
import java.awt.*;
import java.awt.event.*;
public class Nok extends Frame
public Nok()
     super();
     setBounds(6,6,400,300);
     addWindowListener(new WindowAdapter()
{     public void windowClosing(WindowEvent ev)
               dispose();
               System.exit(0);
     setLayout(new GridLayout(4,0));
     add(new TextField("this is a text field"));
     add(new TextArea("this is a text area"));
     add(new Button("this is a button"));
     setVisible(true);
     Toolkit.getDefaultToolkit().addAWTEventListener(new AWTEventListener()
     {     public void eventDispatched(AWTEvent e)
               System.out.println(""+e);
               ((KeyEvent)e).consume();
     } ,AWTEvent.KEY_EVENT_MASK);
public static void main (String[] args)
     new Nok();

Binding Mouse and Key Events.

Hi,
When a user clicks the Ctrl + V the data from the clipboard
is pasted into the user area. Instead of using this can we do it
using a mouse click. For now, I am planning to bind the event code
of these combinations (CTRL + V == 86) to the mouse click. But when
I tried this I am unable to bind this key event to the mouse event.
Can anyone help me out for getting out of this problem.
Regards,
eodC.

No, it isn't.
Kind regards,
Levi

Disable key event

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